Long-running battle between California and the EPA ends after the state is granted freedom to set its own car emission standards

But Greenpeace report warns some supermarkets are still failing tackle over-fishing

New research warns rising sea levels and changing sediment patterns have made inundation of much of the Mississippi Delta inevitable

Waxman-Markey bill secures narrow House victory and prepares for battle in the Senate

Money will be awarded to paper mills that carry out green activities

Software giant to launch an electricity usage meter

Four grant competitions to help those affected by recession

Estimates of the cost of the scheme vary greatly

US takes major step towards delivery of its first offshore wind farms

Top marketing expert accuses authorities of failing to properly police green advertising claims